Stereographic-mounting frame.



No. 759,949. PATENTED MAY 17, 1904.

HAWLEY 0. WHITE & HARRIB 0. WHITE.

STEREOGRAPHIG MOUNTING FRAME.

APPLICATION FILED JAN. 22. 1903;

PIEr. 1-

E E I F WITNESSES.

HAWLBY EL WHITE.-

HARRIE 0. WHITE. Hg;

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UNITED STATES Patented May 17, 1904.

PATENT OEEICE.

HAWVLEY O. WVHITE AND HARRIE C. XVHITE, OF NORTH BENNINGTON,

VERMONT, ASSIGNORS TO H. O. WHITE (10., OF NORTH BENNING- TON, VERMONT,A CORPORATION OF VERMONT;

STEREOGRAPHlC-NIOUNTING FRAME.

SPECIFICATION forming part of Letters Patent No. 759,949, dated May 17,1904..

Application filed anuary 22, 1903. Serial No. 140,061. (No model.)

To all whom it may concern.-

Be it known that we, HAwLnY O. WHITE and HARRIE O. WHITE, of the villageof North Bennington, in the county of Bennington and State of Vermont,have jointly invented certain Improvements in Stereographic-MountingFrames, of which the subjoined description, in connection with theaccompanying sheet of drawings, constitutes a specification.

The invention relates to means for accurately mounting prints made fromstereoscopic negatives upon stifl' cards for use in stereoscopicinstruments. Such prints are commonly known and are herein designated asstereographs.

To secure the true stereoscopic effect when a stereoscopic view isinspected through a stereoscope, it is essential that the lateralboundaries of the two stereographs should agree and that they should beso superposed on the card or other base that the horizons of the twoprints should coincide with a straight horizontal line and that when thecard is viewed through the scope the horizon of both halves of thestereograph should be parallel with a line connecting the foci of therefracting-lenses. To secure this accurate imposition and attachment ofthe prints upon the cardbase is the object of this invention.

The invention is fully illustrated in the drawings, wherein Figure 1shows a plan of the upper side of the mounting-tablet and guide-frame.Fig. 2 shows a vertical transverse section of the same, taken on theline 2 2 of Fig. l, viewed Fig. 3 is a Vertical longitudinal section ofthe guide-frame, taken on the line 3 3 of Fig. 1, viewed in thedirection of the arrow.

The invention comprises a tablet A, having its upper surface preferablya little inclined toward the operative like a desk-top. To this tablet aguide-frame B is hung by hinges C, so that it may be turned back, asseen in Fig. 2, to place the card-mount in position. This frame is madeof metal, is integral, and has a chainfered, so that there may be nodifficulty in placing the print in position. Pins K and J J are set inthe tablet and serve to act as steps against which the edge of the cardis placed to fix its correct position in the frame. Upon the top of thetablet a thin cushion of a few sheets of paper or other suitablesubstance G may be provided to relieve the resistance offered to theguide-bar L, which is quite thin and easily distorted if crowded downtoo hard against the card; but this is not essential. The interiorangles P P, formed by the sides of bar L and inner edge of the frame B,constitute the guiding-points by which to adjust the exact position ofthe pictures on the card. Projecting upwardly from slots D D in thetablet A are two pressure-springs E E, which are fitted to bear againstthe top edge of the card when in place and crowd it against the pins JJ. \V hen the frame 13 is folded down in position upon the card, it isheld in place by a spring-catch F. A groove O is cut in the uppersurface of the tablet A and extends in under the end of the card H topermit the tip of the finger to be passed under the end of the card tofacilitate its removal after the pictures have been stuck on the card,also to aid in lifting the frame B to turn it back. The frame Bisperforated, as at m and a a, for the passage of the pins K and J J.

The card is shown at H and its position in Fig. 1 by the dotted corners.The pictures are shown at Q Q and have arched tops to more readilydistinguish their outlines from other parts of the drawings. The innerdotted rectangle (jr indicates the position of the pad below the card.

This mounting apparatus is used by first throwing the guide-frame B backand placing a card H on the pad (;l' with its bottom edge bearingagainst pins J J and its left end against pin K, which stands enoughhigher than pins J J to leave room for the tips of the fingers to extendunder the edge of the card while pushing the card against pin K. Whenthe card is pressed down, the springs E E gently but surely press thecard against the pins J J and hold it there while the frame B is turneddown and caught and locked by the springcatch F. The prints Q Q havingpreviously been accurately trimmed to shape and size, wet and pasted ontheir backs, are then lo cated on the card by placing their bottom edgesagainst the inner edge of the bottom of frame B and their inner sideedges against the guide-bar L, care being taken that the corners of thepictures exactly fit the angles P P of the frame. The rest of the printsthen being carefully spread out on the card so as to-keep theirposition, the catch F is then unlocked, the frame B lifted, a fingerpassed under'the' right end of the card in channel 0, and the mountlifted and deposited on a carrier, (not shown,) whence it is carried toa roller or other press, through which it passes to close together theseveral parts preparatory to the finishing process.

It will be seen in Fig. 1 that the interior angles formed by the bottomedge and the inner side edges of the guide-frame can be utilized asguiding edges in'placing the prints on the cards instead of usingthecentralcrossbar L, which could thus be dispensed with. Inasmuch as theseinner edges are parallel with the sides of thecross-bar L the printsbeing previously trimmed for the purpose could as well be adjusted inplace on the card by means of their outer edges placed against the edgeof the guide-frame as their inner edges against the bar L. Hence weregard these inner edges of the guide and the abovedescribed mode of useas the equivalent of the bar L and the mode of use previously described,the latter being the preferred method.

In this description of our invention we have shown only. one but thepreferred style of constructing and using the same. It is manifest,however, that the details thereof may be variously modified withoutdeparting from the main principles of the invention, and we thereforeclaim the benefit of the law governing equivalents.

We therefore claim as our invention, and desire to secure by LettersPatent, the following:

1. A device for mounting stereographs on cards, consisting of a tabletprovided with registering-stops for supporting and adjusting theposition of the card, and a guide-frame connected therewith providedwith a bar which is adapted to transversely span the center of the cardand against the opposite sides of which bar the inner edges of theprints may be adjusted, substantially as specified.

2. A device for mounting stereographs on cards, consisting of a tabletfor supporting the card, registry-stops for determining the position ofthe card with reference to the guideframe, means connected with thetablet for holding the card against the stops, and a guideframeconnected with the tablet provided with a bar which is adapted to spanthe center of the card transversely and against the opposite sides ofwhich bar the inner edges of the prints may be adjusted, substantiallyas specified.

3. The combination with the tablet, its registry-stops and means forholding the card against the same, of the guide-frame connected with thetablet, the inner edge of the bottom rail of which is parallel with thebottom edge of the card and divided into two open panels by adividing-bar arranged perpendicular to the bottom edge of the card whenin position, substantially as specified.

i. The combination with the tablet of an open frame connected therewithadapted to close down upon the card, a picture-locating guide connectedwith the frame for adjusting the position of the two prints and a lockfor holding the card clamped between the frame and tablet during thefixation of the pictures upon the card, substantially as specified.

5. The combination with thetablet and open guide-frame provided with thetransverse bar hinged thereto of a locking device adapted to clamp thetablet and frame together, substantially as specified.

6. Thecombination with the tablet provided with guide-stops foradjusting the position of the card, a finger-channel extending under theedge of the card when in position, a hinged guide-frame and provisionsconnected therewith for adjusting the position of the prints upon thecard, and means for holding the frame and tablet clamped together,substantially as specified.

7. The combination with the tablet and guide-frame connected therewith,of card-adjusting stops on the tablet and means for pressing the edge ofthe card against the same, substantially as specified.

8. The combination with the tablet and open guide-frame connectedtherewith, of card-adjusting stops on the tablet, substantially asspecified.

9. A clamping device for mounting stereographs on cards consisting oftwo jaws and means connected therewith for closing one upon the other,one of said jaws being flat and provided with registry-stops, and theother being perforate to permit the positioning of the pasted printstherethrough on the clamped card, the perforate jaw being provided witha guide against which the prints maybe adjusted by their edges to securecorrect position on the card, substantially as specified.

10. The combination of the tablet provided with means for adjusting theposition of the card thereon, aperforate hinged frame where of the inneredges of the opening are adapted to serve as guides for adjusting theprints on the card, and means for clamping the tablet and frame togetherwhen closed, adapted to operate substantially in the manner and for thepurposes specified.

In testimony whereo f We have hereunto subscribed our names in thepresence of two Witnesses.

HAWLEY G. WHITE. HARRIE (3. WHITE.

Witnesses:

GRAoE L. NEWTON, AGNES R. WHIPPLE.

